package com.atguigu.servlet;

import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

public class Servlet1 extends HttpServlet{
    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        //获取请求的参数
        String username = req.getParameter("username");
        System.out.println("在Servlet1（柜台一）查看参数（材料）"+username);

        //给材料盖一个章，并传递到Servlet2（柜台二）去查看
        req.setAttribute("key","柜台1的章");

        //问路：Servlet2（柜台2）怎么走
        /**
         * 请求转发必须要以斜杠打头，斜杠表示地址为：http://ip:port/工程名/，映射到IDEA代码的web目录
         */
        RequestDispatcher requestDispatcher = req.getRequestDispatcher("/servlet2");
//        RequestDispatcher requestDispatcher = req.getRequestDispatcher("http://www.baidu.com");


        //走向servlet2(柜台2)
        requestDispatcher.forward(req,resp);
    }
}
